Vaadin+Java+Tomcat Server how to display an Error page when we get an Excep

Requirement:
I want to show an error page when ever we get any exception(i.e.,NullPointer,IndexOutofBoundsException etc) in Server Console.

System Requirement:
We are using apache tomcat 7.0.61,maven 3.2.3,Spring and Vaadin 7 (For UI Framework).

Ours WEB.XML file:
<context-param>
..............
</context-param>
<context-param>
<param-name>contextClass</param-name>
<param-value> org.springframework.web.context.support.AnnotationConfigWebApplicationContext </param-value> </context-param>
.....
<listener>
<listener-class> org.springframework.web.context.ContextLoaderListener </listener-class>
</listener>
<servlet>
<servlet-name>Vaadin Application Servlet</servlet-name>
<servlet-class>com.vaadin.server.VaadinServlet</servlet-class>
<init-param> <description>Vaadin UI to display</description>
<param-name>UI</param-name>
<param-value>com.lone.ui.LoneUI</param-value>
</init-param>
<init-param>
<description>Application widgetset</description>
<param-name>widgetset</param-name>
<param-value>com.lone.ui.AppWidgetSet</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>Vaadin Application Servlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>

So i have  browsed and tried with some of the scenarios:

Scenario 1) 
First i have configured 
<error-page> <exception-type>java.lang.Throwable</exception-type> <location>/error</location> </error-page>
(or)
<error-page>
<exception-type>java.lang.Exception</exception-type>
<location>/error</location>
</error-page>
in web.xml file and then i have written the Controller class by using the @RequestMapping("/error") in the method level but this scenario not worked.
Scenario 2)

Same with the above web.xml file i have written the Servlet class as 
@WebServlet(value = {"/error"},asyncSupported = true)
public class ExceptionHandling extends VaadinServlet{ @Override protected VaadinServletService getService() { System.out.println("First if i display the sout message then i can Navigate to the Error Page...."); return super.getService(); } }
But this is also not working.
Scenario 3)

Same with the above web.xml file i have written the Servlet class by extending the HTTPServlet but still unable to display the sout message.

Scenario 4)
I have tried with Spring @ControllerAdvice and @Exception handler Annotation still i am unable to display the Error Page

Could you please suggest me to complete the requirement because i have been working on this requirement from past 2 days.
Thanks in advance.